Door knob knocker



April 9, 1957 FIG. 3

P. A. KLEFFNER 2,787,976

DOOR KNOB KNOCKER Filed Feb. 17, 1956 'P xe-Z r lo .L' is i2 .Lo

INVENTOR. PmuP AJfiLEF-FNER I BY ATTOIZN EYS States Patent ()f DOOR KNOBKNOCKER Philip A. Kleifner, Belt, Mont.

Application February 17, 1956, Serial No. 566,194

1 Claim. (Cl. 116--148) This invention relates to a knocker attachableto the knob collar of the lock set of a door.

Heretofore, door knob and knocker assemblies have been separate from oneanother, and it has been necessary that they be individually mounted inspaced relation upon the door of a house or other structure.

The main object of the present invention is to combine the knocker withthe door knob assembly, thus to eliminate the necessity of separatepurchase of these items, while at the same time facilitatinginstallation of the knocker and door knob upon the door.

A more specific object of the invention is to so mount the knocker uponthe door knob assembly of the lock set that it will not interfere withnormal use of the door knob, with the door knob in turn being sodisposed that it will not interfere with the use of the knocker.

Another important object is to provide a knocker of the type referred towhich will be inexpensively constructed, and will be adapted forincorporation in the lock set of a door with a minimum of modificationand redesign of said lock set, it being merely necessary to drilldiametrically opposite holes in the knob collar of the lock set forattaching the knocker thereto.

Another object is to provide a knocker having side portions or legs thatwill be of a slightly springable material, so that the knocker can beresiliently engaged with the knob collar in the assembled relationshipof these components.

Still another object is to form on the knocker an arcuate bight portion,in a preferred embodiment of the invention, curved about a center commonto that of the peripheral bead of the escutcheon plate of the lock set,whereby said bight portion will follow the curvature of the plateperiphery and will be struck thereagainst when used.

Still another object is to provide a door knob assembly and knockercombined that will be little greater in cost than the cost of a lock setnot having the advantages of the invention.

Other objects will appear from the following description, the claimappended thereto, and from the annexed drawing, in which like referencecharacters designate like parts throughout the several views, andwherein:

Figure l is a perspective view of a combination lock set and knocker, adoor being illustrated fragmentarily;

Figure 2 is a side elevational view of the lock set and knocker, thedoor being illustrated fragmentarily, the scale being enlarged abovethat of Figure l; and

Figure 3 is a transverse sectional view on line 33 of Figure 2.

Referring to the drawings in detail, the reference numeral designates aconventional door, such as an exterior house door. At 12 there has beengenerally designated a lock set, while at 14 there is shown a knockercombined with the lock set.

The lock set includes the usual escutcheon plate 16 having in theillustrated form of the invention a thick- Pa ented Apr.- 9, 19. 7

'ice

ened peripheral head 18. Projecting frgm the escutcheon plate centrallythereof is a knob collar 20 having a pcripheral flange 22 bearingagainst the plate '16, said knob ce a b i st e v Rota n n h co la 2 is ten n t 2 to which i se u ed a oo li e 26 spaced outwardly from theescutcheon plate a dis tance sufiicient for mounting and swinging ofknocker 14.

in the illustrated example, the knocker 14 is formed from a singlelength of rod material, shaped to include a bight portion 28 concentricwith and overlying bead 18 so that when the knocker is swungcounter-clockwise in Figure 2 it will strike the bead.

Integral with bight portion 28 at opposite ends thereof are upwardlyconverging, straight legs 30 and integrally formed on the convergentends of the legs are short extensions 32 providing pivot pins about theaxis of which the knocker swings.

Extensions 32 project toward one another from the convergent ends oflegs 30 in coaxial alignment, and rotatably engage in diametricallyopposed openings 34 formed in the knob collar 20. At their free ends,the extensions terminate at the wall of the bore of collar 20 so as notto interfere with rotation of stem 24. The pivot axis of the knockerdefined by extensions 32, extends diametrically of the knob collar 20 asshown in Figure 3.

Since the knob collar is stationary, the knocker will not turn in itsown plane with the knob 26 when the knob is turned. Therefore, theknocker will not interfere with normal use of the door knob and as shownin Figure 2 is spaced rearwardly from the door knob a distancesuflicient to prevent ones hand from striking the knocker when graspingthe knob.

If, however, it is desired to use the knocker, one merely grasps one orthe other of legs 30 and swings the knocker as shown by the arrows inFigure 2, to cause it to be forcibly brought against the periphery ofthe escutcheon plate, so that the knocker will sound within the buildingstructure.

Quite possibly, the shape of the knocker may be varied, to conform todifferent shapes of escutcheon plates, and in fact it is mainlyessential for successful operation that a portion of the escutcheonplate be disposed in the path of swinging movement of some portion ofthe knocker, to insure that the knocker will strike the plate.

It is believed apparent that the invention is not necessarily confinedto the specific use or uses thereof described above, since it may beutilized for any purpose to which it may be suited. Nor is the inventionto be necessarily limited to the specific construction illustrated anddescribed, since such construction is only intended to be illustrativeof the principles of operation and the means presently devised to carryout said principles, it being considered that the invention comprehendsany minor change in construction that may be permitted within the scopeof the appended claim.

What is claimed is:

A combination door knocker and door lock set, comprising: a fiat,circular escutcheon plate adapted for engagement against a door inface-to-face contact therewith, and formed with an outwardly projectingperipheral bead providing a continuous, annular anvil extendingcircumferentially of said escutcheon plate; a tubular knob collarstationarily engaged in and projecting forwardly from the escutcheonplate in concentric relation therewith, said knob collar being formedwith diametrically opposite openings communicating with the borethereof; a stem rotatably engaged in said collar; a door knob secured tothe stem forwardly of the collar for rotating the stem; and a knockerformed of a single length of rod material having intermediate its ends acurved bight portion overlying the head for the full length of the bightportion, said bight portion being curved about the center of theescutcheon plate on the same radius as the peripheral bead, said knockerfurther including straight legs integral with the ends of the bightportion and extending inwardly from the bight portion, the legsterminating at their inner ends adjacent said openings, the inner endsof the legs being aligned with the openings diametrically of the collar,the knocker additionally including extensions on the inner ends of thelegs pro 10 jecting in longitudinal alignment with each other inwardlyinto the openings, the extensions at their inner ends terminating at thejuncture of the openings with the interior of the collar.

References Cited in the file of this patent UNITED STATES PATENTS1,110,194 Edey Sept. 8, 1914

